For example, in order to meet the expectations for good color rendering in retail applications, research suggests using the well-established CRI along with another metric called gamut area index (GAI). GAI represents the relative separation of object colors illuminated by a light source; the greater the GAI, the greater the apparent saturation or vividness of the object colors. As a result, light sources which balance both CRI and GAI are generally preferred over ones that have only high CRI or only high GAI.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): The relative separating of object colors illuminated by a light source is known as?
Ah, so.. GAI

While still a student, he was offered a small unpaid intern job at Universal Studios with the editing department. He was later given the opportunity to make a short film for theatrical release, the 26-minute, 35mm, Amblin', which he wrote and directed. Studio vice president Sidney Sheinberg was impressed by the film, which had won a number of awards, and offered Spielberg a seven-year directing contract. It made him the youngest director ever to be signed for a long-term deal with a major Hollywood studio.:548 He subsequently dropped out of college to begin professionally directing TV productions with Universal.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What department did Spielberg have an unpaid internship with?
Ah, so.. editing

A major turning point in the development of DC machines took place in 1864, when Antonio Pacinotti described for the first time the ring armature with its symmetrically grouped coils closed upon themselves and connected to the bars of a commutator, the brushes of which delivered practically non-fluctuating current. The first commercially successful DC motors followed the invention by Zénobe Gramme who, in 1871, reinvented Pacinotti's design. In 1873, Gramme showed that his dynamo could be used as a motor, which he demonstrated to great effect at exhibitions in Vienna and Philadelphia by connecting two such DC motors at a distance of up to 2 km away from each other, one as a generator. (See also 1873 : l'expérience décisive [Decisive Workaround] .)
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Besides a motor, what did Gramme use the other device for?
Ah, so..
generator